diff --git a/packages/models-library/src/models_library/api_schemas_webserver/projects_ui.py b/packages/models-library/src/models_library/api_schemas_webserver/projects_ui.py
index 9bbb92f447c..2ecf809870a 100644
--- a/packages/models-library/src/models_library/api_schemas_webserver/projects_ui.py
+++ b/packages/models-library/src/models_library/api_schemas_webserver/projects_ui.py
@@ -40,8 +40,8 @@ class SlideshowUI(TypedDict):
 
 
 class AnnotationUI(BaseModel):
-    type: Literal["note", "rect", "text"]
-    color: Annotated[Color, PlainSerializer(Color.as_hex)]
+    type: Literal["note", "rect", "text", "conversation"]
+    color: Annotated[Color | None, PlainSerializer(Color.as_hex)] = None
     attributes: Annotated[dict, Field(description="svg attributes")]
 
     @staticmethod
@@ -71,6 +71,15 @@ def _update_json_schema_extra(schema: JsonDict) -> None:
                         "color": "#0000FF",
                         "attributes": {"x": 415, "y": 100, "text": "Hey!"},
                     },
+                    {
+                        "type": "conversation",
+                        "attributes": {
+                            "conversationId": 2,
+                            "x": 415,
+                            "y": 100,
+                            "title": "My chat",
+                        },
+                    },
                 ]
             },
         )
@@ -169,6 +178,15 @@ def _update_json_schema_extra(schema: JsonDict) -> None:
                                     "fontSize": 12,
                                 },
                             },
+                            "cf94f068-259c-4192-89f9-b2a56d51249d": {
+                                "type": "conversation",
+                                "attributes": {
+                                    "conversationId": 2,
+                                    "x": 119,
+                                    "y": 223,
+                                    "title": "My chat",
+                                },
+                            },
                         },
                         "current_node_id": "4b3345e5-861f-47b0-8b52-a4508449be79",
                         "template_type": "hypertool",
diff --git a/services/web/server/src/simcore_service_webserver/api/v0/openapi.yaml b/services/web/server/src/simcore_service_webserver/api/v0/openapi.yaml
index 23dbe53f649..dec98e42082 100644
--- a/services/web/server/src/simcore_service_webserver/api/v0/openapi.yaml
+++ b/services/web/server/src/simcore_service_webserver/api/v0/openapi.yaml
@@ -8458,7 +8458,7 @@ components:
       - stats
       - limits
       title: Activity
-    AnnotationUI:
+    AnnotationUI-Input:
       properties:
         type:
           type: string
@@ -8466,10 +8466,36 @@ components:
           - note
           - rect
           - text
+          - conversation
+          title: Type
+        color:
+          anyOf:
+          - type: string
+            format: color
+          - type: 'null'
+          title: Color
+        attributes:
+          type: object
+          title: Attributes
+          description: svg attributes
+      additionalProperties: false
+      type: object
+      required:
+      - type
+      - attributes
+      title: AnnotationUI
+    AnnotationUI-Output:
+      properties:
+        type:
+          type: string
+          enum:
+          - note
+          - rect
+          - text
+          - conversation
           title: Type
         color:
           type: string
-          format: color
           title: Color
         attributes:
           type: object
@@ -8479,7 +8505,6 @@ components:
       type: object
       required:
       - type
-      - color
       - attributes
       title: AnnotationUI
     Announcement:
diff --git a/services/web/server/src/simcore_service_webserver/projects/utils.py b/services/web/server/src/simcore_service_webserver/projects/utils.py
index 93c19a823a4..70a0047c042 100644
--- a/services/web/server/src/simcore_service_webserver/projects/utils.py
+++ b/services/web/server/src/simcore_service_webserver/projects/utils.py
@@ -93,6 +93,12 @@ def _replace_uuids(node: str | list | dict) -> str | list | dict:
             project_copy["ui"].get("slideshow", {})
         )
 
+        # exclude annotations UI info for conversations done in the source project
+        annotations = project_copy.get("ui", {}).get("annotations", {}).copy()
+        for ann_id, ann in annotations.items():
+            if ann["type"] == "conversation":
+                project_copy["ui"]["annotations"].pop(ann_id)
+
     if clean_output_data:
         for node_data in project_copy.get("workbench", {}).values():
             for field in _FIELDS_TO_DELETE:
diff --git a/services/web/server/tests/data/fake-project-with-conversation.json b/services/web/server/tests/data/fake-project-with-conversation.json
new file mode 100644
index 00000000000..5c8ddfa9e35
--- /dev/null
+++ b/services/web/server/tests/data/fake-project-with-conversation.json
@@ -0,0 +1,89 @@
+{
+  "accessRights": {},
+  "uuid": "de2578c5-431e-6257-a462-d7bf73b76c0c",
+  "name": "fake-project-name",
+  "description": "anim sint pariatur do dolore",
+  "prjOwner": "foo@foo.com",
+  "creationDate": "1865-11-30T04:00:14.000Z",
+  "lastChangeDate": "7364-11-30T10:04:52.000Z",
+  "thumbnail": "https://some_fake_project_thumbnail.com/fake",
+  "tags": [],
+  "classifiers": [],
+  "workbench": {
+    "b4b20476-e7c0-47c2-8cc4-f66ac21a13bf": {
+      "key": "simcore/services/frontend/file-picker",
+      "version": "1.0.0",
+      "label": "File Picker 0D",
+      "inputs": {},
+      "inputNodes": [],
+      "outputs": {},
+      "position": {
+        "x": 50,
+        "y": 150
+      }
+    },
+    "5739e377-17f7-4f09-a6ad-62659fb7fdec": {
+      "key": "simcore/services/comp/ucdavis-singlecell-cardiac-model",
+      "version": "1.0.0",
+      "label": "DBP-Clancy-Rabbit-Single-Cell solver",
+      "inputAccess": {
+        "Na": "ReadAndWrite",
+        "Kr": "ReadOnly",
+        "BCL": "ReadAndWrite",
+        "NBeats": "ReadOnly",
+        "Ligand": "Invisible",
+        "cAMKII": "Invisible"
+      },
+      "inputs": {
+        "Na": 0,
+        "Kr": 0,
+        "BCL": 200,
+        "NBeats": 5,
+        "Ligand": 0,
+        "cAMKII": "WT",
+        "initfile": {
+          "nodeUuid": "b4b20476-e7c0-47c2-8cc4-f66ac21a13bf",
+          "output": "outFile"
+        }
+      },
+      "inputNodes": [
+        "b4b20476-e7c0-47c2-8cc4-f66ac21a13bf"
+      ],
+      "outputs": {},
+      "position": {
+        "x": 300,
+        "y": 150
+      }
+    },
+    "351fd505-1ee3-466d-ad6c-ea2915ffd364": {
+      "key": "simcore/services/dynamic/raw-graphs",
+      "version": "2.10.4",
+      "label": "2D plot",
+      "inputs": {},
+      "outputs": {},
+      "position": {
+        "x": 1073,
+        "y": 307
+      },
+      "progress": 100
+    }
+  },
+  "ui": {
+    "annotations": {
+      "b8a7e8e2-1c2d-4f3a-9c5e-123456789abc": {
+        "type": "conversation",
+        "attributes": {
+          "conversationId": 2,
+          "x": 415,
+          "y": 100,
+          "title": "My chat"
+        }
+      }
+    }
+  },
+  "quality": {},
+  "dev": {},
+  "workspaceId": null,
+  "type": "STANDARD",
+  "templateType": null
+}
diff --git a/services/web/server/tests/unit/isolated/test_projects_utils.py b/services/web/server/tests/unit/isolated/test_projects_utils.py
index 0178882d760..1dffd70ad63 100644
--- a/services/web/server/tests/unit/isolated/test_projects_utils.py
+++ b/services/web/server/tests/unit/isolated/test_projects_utils.py
@@ -22,6 +22,7 @@
     "test_data_file_name",
     [
         "fake-project.json",
+        "fake-project-with-conversation.json",
         "fake-template-projects.hack08.notebooks.json",
         "fake-template-projects.isan.2dplot.json",
         "fake-template-projects.isan.matward.json",
@@ -51,6 +52,13 @@ def test_clone_project_document(
     for clone_node_id in clone["workbench"]:
         assert clone_node_id not in node_ids
 
+    # checks no conversation have been copied
+    if "ui" in clone and "annotations" in clone["ui"]:
+        assert not any(
+            annotation["type"] == "conversation"
+            for annotation in clone["ui"]["annotations"].values()
+        )
+
     # Here we do not use anymore jsonschema.validator since ...
     #
     # "OpenAPI 3.0 does not have an explicit null type as in JSON Schema, but you can use nullable: